ICD-10-CM diagnosis code
N80.512 Deep endometriosis of the rectum
- Billable
- Yes, a complete code (FY2026)
- Category
- N80 Endometriosis
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Other codes in N80
138 complete codes in this category.
- N80.3C9Endometriosis of the uterosacral ligament(s), unspecified side, unspecified depth
- N80.40Endometriosis of rectovaginal septum, unspecified involvement of vagina
- N80.41Endometriosis of rectovaginal septum without involvement of vagina
- N80.42Endometriosis of rectovaginal septum with involvement of vagina
- N80.50Endometriosis of intestine, unspecified
- N80.511Superficial endometriosis of the rectum
- N80.512Deep endometriosis of the rectum
- N80.519Endometriosis of the rectum, unspecified depth
- N80.521Superficial endometriosis of the sigmoid colon
- N80.522Deep endometriosis of the sigmoid colon
- N80.529Endometriosis of the sigmoid colon, unspecified depth
- N80.531Superficial endometriosis of the cecum
Documentation tips
- Make sure the note supports every element of the title, “Deep endometriosis of the rectum”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to N80.
The international WHO ICD-10 also has N80, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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